Revert "Remove antialiasing control from GrPaint."

This reverts commit 9f549358b3ac9f61e78b194e39d6ac6eb322e35e.

Reason for revert: hitting asserts

Change-Id: I542d34edc05ecf72b7646263f25736a0950c78e7
Reviewed-on: https://skia-review.googlesource.com/5707
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
74 files changed